CSI: Immortality CSI: Crime Scene Investigation. "Immortality" An explosion inside a casino brings Catherine Willows back to Las Vegas to investigate. And when the crime is tied to Lady Heather, Gil Grissom is brought back as well to aid the investigation. This is a 2 part TV Special. Series Finale Details Casts Galleries Posters Title CSI: Immortality Release Date 2015-09-27 Runtime 01 Hours 27 Minutes Genres Crime Mystery TV Movie Production Companies Jerry Bruckheimer Television, CBS Studios Production Countries United States of America Ted Danson... D.B. Russell... Jorja Fox... Sara Sidle... Eric Szmanda... Greg Sanders... Robert David Hall... Dr. Al Robbins... Wallace Langham... David Hodges... David Berman... David Phillips... Elisabeth Harnois... Morgan Brody... Jon Wellner... Henry Andrews... William Petersen... Gil Grissom... Marg Helgenberger... Catherine Willows... Paul Guilfoyle... Jim Brass... Michael Beach... Harbor Patrol SD Scinta... Melinda Clarke... Lady Heather... Breeda Wool... Rebecca O'Bryan... Alexandra Barreto... Romina Gonzalez... Gregg Turkington... Lawrence Territo... Isiah Greene... Singer #1... Original Size (1920x1080) Original Size (1920x1080) Original Size (1000x1500) Original Size (1000x1500) Original Size (680x1000) Original Size (665x1000) Original Size (1489x2233)